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The next-to-leading-order electroweak corrections to $pp\to l^+l^-/\bar\nu\nu+\gamma+X$ production, including all off-shell effects of intermediate Z bosons in the complex-mass scheme, are calculated for LHC energies, revealing the…

高能物理 - 唯象学 · 物理学 2016-03-23 Ansgar Denner , Stefan Dittmaier , Markus Hecht , Christian Pasold

We present state-of-the-art cross section predictions for the production of supersymmetric squarks and gluinos at the upcoming LHC run with a centre-of-mass energy of $\sqrt{s} = 13$ and $14$ TeV, and at potential future $pp$ colliders…

Three searches for the direct production of $\tau$-sleptons or charginos and neutralinos in final states with at least two hadronically decaying $\tau$-leptons are presented. For chargino and neutralino production, decays via intermediate…

高能物理 - 实验 · 物理学 2024-08-15 ATLAS Collaboration

Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two tau leptons. The data sample corresponds to an integrated luminosity between 18.1 inverse femtobarns…

高能物理 - 实验 · 物理学 2017-04-11 CMS Collaboration

We test the impact of the ATLAS and CMS multi-lepton searches performed at the LHC with 8 as well as 13 TeV center-of-mass energy (using only the pre-2018 results) on the chargino and neutralino sector of the NMSSM. Our purpose consists in…

高能物理 - 唯象学 · 物理学 2020-04-15 Florian Domingo , Jong Soo Kim , Victor Martin-Lozano , Pablo Martin-Ramiro , Roberto Ruiz de Austri

The dominant production process for heavy charged Higgs bosons at the LHC is the associated production with heavy quarks. We have calculated the next-to-leading-order supersymmetric QCD corrections to charged-Higgs production through the…

高能物理 - 唯象学 · 物理学 2011-03-21 Stefan Dittmaier , Michael Krämer , Michael Spira , Manuel Walser

We calculate the cross section for the inclusive production of single hadrons with finite transverse momenta in deep-inelastic scattering at next-to-leading order (NLO), i.e. through O(alpha_s^2), in the parton model of QCD endowed with…

高能物理 - 唯象学 · 物理学 2010-11-05 B. A. Kniehl , G. Kramer , M. Maniatis

The common belief that the lightest supersymmetric particle (LSP) might be a neutralino, providing also the main Dark Matter (DM) component, calls for maximal detail in the study of the neutralino properties. Motivated by this, we consider…

高能物理 - 唯象学 · 物理学 2009-11-10 G. J. Gounaris , J. Layssac , P. I. Porfyriadis , F. M. Renard

We present the total cross sections at next-to-next-to-leading order (NNLO) in the strong coupling for single and double charged Higgs production via weak boson fusion. Results are obtained via the structure function approach, which builds…

高能物理 - 唯象学 · 物理学 2011-10-06 Marco Zaro , Paolo Bolzoni , Fabio Maltoni , Sven-Olaf Moch

In these proceedings, next-to-leading-order (NLO) QCD and electroweak (EW) corrections to ${\rm p}{\rm p} \to {\rm e}^+ \nu_{\rm e} \mu^- \bar \nu_\mu {\rm b} \bar{\rm b} {\rm H}$ at the LHC are presented. In these computations the top…

高能物理 - 唯象学 · 物理学 2020-01-22 Ansgar Denner , Jean-Nicolas Lang , Mathieu Pellen , Sandro Uccirati

We have computed the full next-to-leading (NLO) QCD corrections to the differential distributions $d^2\sigma/(dp_T~dy)$ for pseudo-scalar Higgs (A) production at large hadron colliders. This calculation has been carried out using the…

高能物理 - 唯象学 · 物理学 2009-11-07 B. Field , J. Smith , M. E. Tejeda-Yeomans , W. L. van Neerven

We calculate the MSSM $O(\alpha)$ corrections to the main production processes of strong top pair production at the upgraded Tevatron and at the LHC. In exploring the potential of future hadron colliders for performing electroweak precision…

高能物理 - 唯象学 · 物理学 2007-05-23 W. Hollik , C. Kao , W. M. Moesle , D. Wackeroth

We present a phenomenology study probing pair production of supersymmetric charginos and neutralinos ("electroweakinos") with the vector boson fusion (VBF) topology in proton-proton collisions at CERN's Large Hadron Collider (LHC). In…

高能物理 - 唯象学 · 物理学 2025-10-28 Umar Sohail Qureshi , Alfredo Gurrola , Andres Flórez

We investigate the QCD effects in the associated production of the chargino and the neutralino, $\tilde\chi^\pm_{1}$ and $\tilde\chi^0_{2}$, in the Minimal Supersymmetric Standard Model (MSSM) at both the Fermilab Tevatron and the CERN…

高能物理 - 唯象学 · 物理学 2008-11-26 Chong Sheng Li , Zhao Li , Robert J. Oakes , Li Lin Yang

We present new results of next-to-leading order (NLO) electroweak corrections to doubly-polarized cross sections of $W^+W^-$ production at the LHC. The calculation is performed for the leptonic final state of $e^+\mu_e \mu^- \bar{\nu}_\mu$…

高能物理 - 唯象学 · 物理学 2024-09-26 Thi Nhung Dao , Duc Ninh Le

The doubly-polarized production of $W^\pm Z$ pairs at the Large Hadron Collider (LHC) is presented at next-to-leading order (NLO) accuracy both for the electroweak (EW) and QCD corrections, including a detailed description of the…

高能物理 - 唯象学 · 物理学 2022-08-22 Duc Ninh Le , Julien Baglio , Thi Nhung Dao

In most extensions of the Standard Model, heavy charged Higgs bosons at the LHC are dominantly produced in association with heavy quarks. An up-to-date determination of the next-to-leading order total cross section in a type-II…

高能物理 - 唯象学 · 物理学 2015-07-27 Martin Flechl , Richard Klees , Michael Kramer , Michael Spira , Maria Ubiali

We discuss the associated production of a light Higgs boson and a light chargino pair in the process e+e- -> h chi+ chi- in the Minimal Supersymmetric Standard Model (MSSM) at linear colliders (LC) with \sqrt s=500 GeV. This process gives…

高能物理 - 唯象学 · 物理学 2016-09-06 Giancarlo Ferrera , Barbara Mele

We present the first complete calculation of hadron production in deep-inelastic scattering (DIS) at finite transverse momentum to next-to-next-to-leading order (NNLO) in perturbative QCD. To overcome the long-standing challenge of infrared…

高能物理 - 唯象学 · 物理学 2026-02-27 Liang Dong , Shen Fang , Jun Gao , Hai Tao Li , Ding Yu Shao , Yu Jiao Zhu

Top-antitop quark pairs belong to the most abundantly produced and precisely measurable heavy-particle signatures at hadron colliders and allow for crucial tests of the Standard Model and new-physics searches. Here we report on the…

高能物理 - 唯象学 · 物理学 2011-06-22 A. Denner , S. Dittmaier , S. Kallweit , S. Pozzorini